Changes in decibel scale wavelength properties of EEG with alertness levels while performing sustained attention tasks

Author

Arjunan, Sridhar P. ; Kumar, Dinesh K. ; Jung, Tzyy-Ping

Author_Institution

Biosignal Lab., RMIT Univ., Melbourne, VIC, Australia

fYear

2009

fDate

3-6 Sept. 2009

Firstpage

6288

Lastpage

6291

Abstract

Loss of alertness can have dire consequences for people controlling motorized equipment or for people in professions such as defense. Electroencephalogram (EEG) is known to be related to alertness of the person, but due to high level of noise and low signal strength, the use of EEG for such applications has been considered to be unreliable. This study reports the fractal analysis of EEG and identifies the use of maximum fractal length (MFL) as a feature that is inversely correlated with the alertness of the subject. The results show that MFL (of only single channel of EEG) indicates the loss of alertness of the individual with mean (inverse) correlation coefficient = 3D 0.82.

Keywords

electroencephalography; fractals; medical signal processing; EEG; alertness; correlation coefficient; defense; electroencephalogram; fractal analysis; maximum fractal length; Adolescent; Adult; Algorithms; Attention; Auditory Perception; Brain; Cognition; Diagnosis, Computer-Assisted; Electroencephalography; Humans; Task Performance and Analysis; Young Adult;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE

Conference_Location

Minneapolis, MN

ISSN

1557-170X

Print_ISBN

978-1-4244-3296-7

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2009.5332801

Filename

5332801